One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,6)(3,5,7,8)(17,18)(19,25)(20,22)(21,24)(23,27)(26,32)(28,30)(29,31)(3,7)(5,8)(9,10)(11,15)(12,13)(14,16)(17,19,22,27)(18,23,20,25)(21,29,30,26)(24,32,28,31)(1,2)(3,5)(4,6)(7,8)(10,13)(14,15)(18,20)(21,30)(23,25)(26,29) involution — undirected(9,10)(11,14)(12,13)(15,16)(17,20,22,18)(19,25,27,23)(21,28,30,24)(26,32,29,31)(1,3)(2,5)(4,7)(6,8)(9,10)(11,14)(12,13)(15,16)(17,21)(18,24)(19,26)(20,28)(22,30)(23,31)(25,32)(27,29) involution — undirected(1,2)(3,5)(4,6)(7,8)(9,11)(10,14)(12,16)(13,15)(17,19)(18,23)(20,25)(21,26)(22,27)(24,31)(28,32)(29,30) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.